swordfish

Meanings

Noun

• A large marine fish with a long, pointed bill, Xiphias gladius.
• A sudoku technique involving possible cell locations for a digit, or pair, or triple, in uniquely three rows and three columns only. This allows for the elimination of candidates around the grid.

Verb

• To fish for swordfish.

Origin

• From Middle English swerdfysche, equivalent to sword + fish.